Vol. xH.] 12 



Mr. Stuart Baker on behalf of Mr. Robinson also 

 described: — = ^^jyU^-^v^XevC^ ^^ ^ -^ >! 4.^ ^ ■;^'^ ^ ^ 



"^ Molpastes atricapillus klossi, subsp. nov. 



Differs from the typical Moljyastes atricapillus atricaj)iUus 

 Vieill., from China, in being smaller. General colour above 

 paler, almost pale wood-brown, the feathers of the mantle 

 distinctly margined with pale whitish-brown, giving a 

 striated appearance ; lower rump almost uniform white, this 

 colour continued on the upper tail-coverts ; some of the 

 longest upper tail-coverts pale Avood-brown at the tip ; ear- 

 coverts silvery-white, slightly tinged with fawn - colour 

 anteriorly ; extreme portion of cheeks blackish like the chin 

 and lores ; centre of throat and middle of abdomen almost 

 pure white; remainder of underparts of the body, except 

 the under tail-coverts which are bright scarlet-red, pale 

 whitish-brown. 



Type. Adult male from Koon Tan, Northern Siam. Col- 

 lected on the 10th May, 1914, by Nils Gyldenstolpe. 



Total length 195 mm., wing 92'5 mm., tail 93 mm., 

 tarsus 20 mm., bill from gape 22 mm. 



Series examined. 21 specimens (11 d" (^, 7 $ ?, 3 im.) 

 from the mountain reoions of Northern Siam. 



Dimensions. The wings vary between 88'0 to 93*4 mm. in 

 the males and 85*5 to 86" 7 mm. in the females, against 

 98 mm. in the males of the typical race. 



Hah. Northern Siam and possibly the adjacent parts of 

 British Burma. 



Dr. C. B. TiCEHURST exhibited a new species of Roed- 

 Warbler from the marshes of Lower Mesojjotamia, which he 

 proposed to call 



Acrocephalus bal>yloniciis, sp, nov. 

 This remarkable Reed- Warbler, of which I have examined 

 five specimens, appears tO be entirely new, and as it does not 

 obviously seem to be a race of any known species, I prefer at 

 present to treat it as a new species. It has the same-shaped 

 bill as A. steutoreus thougb smaller, but the wing-formula 



